877.454.7792 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE
Home

Mr. Gasket Ultra-Seal Header Gaskets 5921

Mr. Gasket Ultra-Seal Header Gaskets 5921
$53.99 ea
NEWARRIVING SOONEstimated Ship Date 05/17/2024 (If Ordered Today)19 Available from HOLLEY PERFORMANCE PRODUCTS as of 04/28/2024
Model: 4011864
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp-load. Can be trimmed if necessary for modified port applications. For original equipment replacement, high performance street, drag race and oval track use.
Features:
  • Has A Steel Core With Graphite Facing
  • Graphite Facing Has Excellent Thermo-conductivity
  • High Recovery Mat Allows For Better Seal Retention
  • Can Be Trimmed For Port Modifications
  • Expanded Steel Core For Stability
  • These Gaskets Have Slotted End Holes

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Pontiac GTO 1965 6.4L / 389 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac GTO 1966 6.4L / 389 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac GTO 1968 6.6L / 400 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac GTO 1969 6.6L / 400 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac GTO 1970 6.6L / 400 / V8
7.5L / 455 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac GTO 1971 6.6L / 400 / V8
7.5L / 455 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac GTO 1972 6.6L / 400 / V8
7.5L / 455 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac GTO 1973 6.6L / 400 / V8
7.5L / 455 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1965 6.4L / 389 / V8
6.9L / 421 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1966 6.4L / 389 / V8
6.9L / 421 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1967 7.0L / 428 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1968 7.0L / 428 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1969 7.0L / 428 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1970 7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1971 7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1972 7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1973 7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1974 7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1975 7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1976 5.7L / 350 / V8
7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Grand Prix 1977 5.7L / 350 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1965 5.3L / 326 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1966 5.3L / 326 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1967 5.3L / 326 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1968 5.7L / 350 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1969 5.7L / 350 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1970 5.7L / 350 / V8
7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1971 5.7L / 350 / V8
7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1972 5.7L / 350 / V8
7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1973 5.7L / 350 / V8
7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1974 5.7L / 350 / V8
7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1975 5.7L / 350 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1976 5.7L / 350 / V8
7.5L / 455 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac LeMans 1977 5.7L / 350 / V8
6.6L / 400 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Tempest 1965 5.3L / 326 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Tempest 1966 5.3L / 326 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Tempest 1967 5.3L / 326 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Tempest 1968 6.6L / 400 / V8
5.7L / 350 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Tempest 1969 6.6L / 400 / V8 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;
Pontiac Tempest 1970 6.6L / 400 / V8
5.7L / 350 / V8		 ULTRA SEAL; EXHAUST GASKET SET; ALL D PORT INCLUDING RAM AIR III; PORT DIMENSIONS W-1.5 IN. X H-1.94 IN.;

Specifications:

Collector Gaskets Included No
Emission Code 5
Engine Pontiac V8
Gasket Line Ultra-Seal
Material Ultra-seal
Part Type Exhaust Manifold Gasket Set
Port Shape Oval / D
Port Size 1.46" x 1.93"
Product Type Header Gaskets
Proposition 65 www.P65Warnings.ca.gov
Thickness .062"
Warranty Limited 90 Day Warranty TX, Limited 90 Day Warranty
Weight 0.3800

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

Mr. Gasket Ultra-Seal Header Gaskets 5921:
Reason for Inquiry:

Related Products

Mr. Gasket Ultra-Seal Header Gaskets 5966
Mr. Gasket Ultra-Seal Header Gaskets 5966
Model: 3316017
Condition: NEW
$61.99 ea
Mr. Gasket Ultra-Seal Header Gaskets 5920
Mr. Gasket Ultra-Seal Header Gaskets 5920
Model: 4011863
Condition: NEW
$61.99 ea
Mr. Gasket Ultra-Seal Header Gaskets 5945
Mr. Gasket Ultra-Seal Header Gaskets 5945
Model: 4011877
Condition: NEW
$53.99 ea
Mr. Gasket Performance Header Gaskets 6452
Mr. Gasket Performance Header Gaskets 6452
Model: 4012035
Condition: NEW
$35.99 ea
Mr. Gasket Copper Seal Header Gaskets 7158MRG
Mr. Gasket Copper Seal Header Gaskets 7158MRG
Model: 4012201
Condition: NEW
$87.99 ea
Chevelle Depot 2024